Carn Dearg is a Corbett of 834.4 m in Highland. It stands 157.6 m above its nearest neighbour, Leana Mhor (Highland, NN316879), 2.9 km to the west.
The higher hill nearest to it, Beinn Teallach, is a Munro, 3.2 km to the south-east. It falls on two OS 1:50,000 sheets, 34 and 41.